Electrical connectors

ABSTRACT

An electrical connector of the receptacle type comprises a mounting panel having electrical posts secured therein at the spaced locations. Spring members disposed on sections of the posts extending outwardly from one surface of the panel. Means provided by the sections of the posts and the spring members securing the spring members on the sections. Legs of the spring members biased against contact surfaces of the post sections to define receptacle means and outer ends of the post sections and legs being chamfered to define lead-in means to facilitate movement of contact members within the receptacle means. Maintaining means provided by the spring members for maintaining other legs of the spring members in secured engagement with the post sections and to guide movement of the first-mentioned legs relative to the post sections.

United States Patent Gluntz [4 1 Apr. 25, 1972 s41 ELECTRICAL CONNECTORSFOREIGN PATENTS OR APPLICATIONS [72] inventor: Glenn Harlan Gluntz,Harrisburg, Pa. 1,474,151 2/1967 France ..339/1 76 M [73] Assignee: AMPincorporated, Harrisburg, Pa. OTHER PUBLICATIONS [22] Filed: Jan. 21,1970 [21] Appl. No.: 4,662

Related U.S. Application Data [63] Continuation-impart of Ser. No.869,079, Oct. 24,

1969, abandoned.

[52] U.S. Cl. ..339/l92 R, 339/258 R [51] Int. Cl ..H0lr 33/76 [58]Field oiSearch ..339/l7C, 17CF, 95, 97,32,

339/176, 256, 258, 259, 262, 255 R, 255 A, 255 B,

[56] References Cited UNITED STATES PATENTS 3,126,089 3/1964 Hugli..85/8.6 2,709,794 5/1955 Johansson ..339/258 3,120,990 2/1964 Kinkaid.339/259 F 3,273,102 9/1966 Cobaugh.... ..339/l8 3,283,289 11/1966Cobaugh.... ....339/256 R 3.315.219 4/1967 Brinser et al... ....339/1983.32.3,099 5/1967 Spera 339/192 R 3,369,212 2/1968 Coldren et al...339/32 E. C. Uberbacher, ,lBM Tech. Disc. Bulletin, Dual Contact-SLTPin," Vol. 7 No. 1, page 8,.lune 1964 Primary Examiner-Marvin A.Champion Assistant Examiner-Lawrence .l. Staab Attorney-Curtis, Morrisand Safford, William J. Keating, Frederick W. Rating, Adrian .1. La Rue,Jay L. Seitchik, John P. Vandenburg and Ronald D. Grefe [57] ABSTRACT Anelectrical connector of the receptacle type comprises a mounting panelhaving electrical posts secured therein at the spaced locations. Springmembers disposed on sections of the posts extending outwardly from onesurface of the panel. Means provided by the sections of the posts andthe spring members securing the spring members on the sections. Legs ofthe spring members biased against contact surfaces of the post sectionsto define receptacle means and outer ends of the post sections and legsbeing chamfered to define lead-in means to facilitate movement ofcontact members within the receptacle means. Maintaining means providedby the spring members for maintaining other legs of the spring membersin secured engagement with the post sections and to guide movement ofthe first-mentioned legs relative to the post sections.

17 Claims, 22 Drawing Figures PATENTEBAPRZS I972 3,659,243 saw 10; 5

INVENTOR G ENN HARLAN LUNTZ BY PATENTEDAPRZS I972 3, 659, 243

SHEET 2 5 INVENTOR GLENN HARLAN GLUNTZ PATENTEDAPRZBIQYE 8.659.243

j so @5757 q, /A GLENN HARLAN GLUNTZ i I Ih BY PATENTEmPRzsm v K3,659,243 SHEETSDFS This application is a continuation-in-part ofapplication Ser. No. 869,079, filed Oct. 24, 1969, and now abandoned.

This invention relates to electrical connectors and more particularly toelectrical connectors for making electrical connection with leads of amicroelectronic circuit member.

In the field of microelectronic circuitry such as, for example,integrated circuits and large scale integrated circuits, leads extendingoutwardly therefrom have to be connected with other circuitry toformulate a complete circuit arrangement. In view of the smallness ofthis microelectronic circuitry, connection of the leads thereof to othercircuitry has been a problem, and solving of the connection problem forthese circuits has been of significant importance since the effectiveuse of these circuits is paramount in'present and future electroniccircuit capabilities for without proper connection of microelectroniccircuitry, improper operation thereof will result.

An object of the present invention is to provide electrical receptaclemeans insulatingly spaced in parallel rows on a mounting panel forelectrical connection with leads of microelectronic circuit means.

Another object is the provision of electrical receptacle means for leadsof .microelectronic circuit means which include posts secured in amounting panel and having sections extending outwardly from one surfaceof the mounting panel on which spring means is mounted.

A further object is to provide chamfered areas on the post sections andthe spring means defining lead-in means for leading leads of themicroelectronic circuit means into the receptacle means.

An additional object is the provision of wing means on the spring meansto maintain movable sections of the spring means in alignment with thepost sections.

Still a further object is to provide means on the spring means forpreventing rotation or movement around the post sections.

A still additional object is the provision of housing means housing thereceptacle means individually or in numbers.

Still another object is to provide other sections of the posts definingconductor-engaging sections for having connected therewith conductors ina point-to-point wiring scheme.

A further object of the invention is to provide an improved method ofassembling electrical connecting devices to terminal posts and means foraccomplishing such assembling methods.

Other objects and attainments of the present invention will becomeapparent to those skilled in the art upon a reading of the followingdetailed description when taken in conjunction with the drawings inwhich there are shown and described illustrative embodiments of theinvention; it is to be understood, however, that these embodiments arenot intended to be exhaustive nor limiting of the invention but aregiven for purposes of illustration in order that others skilled in theart may fully understand the invention and the principles thereof andthe manner of applying it in practical use so that they may modify it invarious forms, each as may be best suited to the conditions of aparticular use.

In the drawings:

FIG. 1 is a part perspective view of an electrical connector with partof a microelectronic circuit means exploded therefrom in phantom;

FIG. 2 is a cross-sectional view of an electrical connector of FIG. 1with housing means in position thereon;

FIG. 3 is a perspective view of spring means which is one of theelements of the receptacle means;

FIG. 4 is an alternative embodiment of a spring means;

FIG. 5 is another embodiment of the spring means;

FIG. 6 is a perspective view of a further embodiment of the spring meansin position on a spring-receiving section of a post means;

FIG. 7 is a perspective view of still another embodiment of the springmeans;

FIG. 8 is a perspective view of still a further embodiment of the springmeans;

FIG. 9 is a perspective view of an additional embodiment of the springmeans;

FIG. 10 is a cross-sectional view of FIG. 9 with the spring means inposition on a spring-receiving section of a post means;

FIG. 11 is an exploded and perspective view of still another embodimentof the electrical connector and individual hous- 0 ing means therefor;and

FIG. 12 is a cross-sectional view through the electrical connector andhousing of FIG. 11;

FIGS. 13 and 14 are fragmentary perspective views illustrating themanner in which connectors in accordance with the invention can bemounted on terminal posts;

FIG. 15 is a view illustrating the manner in which the carrier strip isremoved from a plurality of connectors after they have been assembled tothe terminal posts of a panel board;

FIG. 16 is a view similar to FIG. 13 but illustrating the manner inwhich connectors in accordance with the invention can be assembled to aprinted circuit board on closely spaced centers;

FIG. 17 is a perspective view of a hand tool for assembling closelyspaced connectors, as shown in FIG. 16, to the terminal posts of aprinted circuit board;

FIG. 18 is a side view of the tool of FIG. 17;

FIG. 19 is a side view of the tool showing the jaws in their closedconditions with a strip of terminals gripped between the aws;

FIG. 19A is an enlarged side view of the left-hand end of the tool asshown in FIG. 19;

FIG. 20 is a fragmentary frontal view of the jaw portions of the tool ofFIG. 17;

FIG. 21 is a view taken along the lines 2l2l of FIG. 19A.

Turning now to FIGS. 1 through 3, metallic posts 1 are force fitted intoopenings within dielectric mounting panel 2 in rows and spaced from eachother corresponding to the spaced leads 3 of microelectronic circuitmeans 4 defining an integrated circuit IC, a medium scale integratedcircuit MS! or a large scale integrated circuit LS1.

Posts 1 have spring-receiving sections 5 which are provided with beveledsurfaces 6 and projections 7. A corrugated area 8 is provided on theinner surface of spring-receiving sections 5.

Spring means 9 is stamped and formed from a suitable metal havingdesirable spring characteristics and it includes an oblong opening 10having a width to enable the spring means to be inserted ontospring-receiving sections 5 therethrough until bight 11 is disposedadjacent the upper surface of panel 2. The width of opening 10 isslightly smaller than the width of section 5 so that opposing surfacesof opening 10 snugly engage opposite sides of section 5. In order tofacilitate the movement of spring means 9 onto section 5, a slit 12 isprovided in bight 11 to permit opening 10 to be opened further ifopening 10 is not wide enough or section 5 is too wide so that nodeformation to opening 10 is done when spring means 9 is mounted onsection 5. Slit 12 therefore provides an antioverstress means and allowsfor manufacturing tolerances.

I Spring means 9 includes a stationary member 13 and a movable member14. Stationary member 13 has its free end disposed in alignment withprojection 7 and movable member 14 is springably engaged with section 5along corrugated area 8 to thereby maintain stationary member 13 inengagement with section 5 and the free end in alignment with projection7 and this action secures the spring means 9 in position on section 5.Outer end 15 of movable member 14 has an arcuate configuration and itextends angularly away from beveled surface 6 of section 5 so thatbeveled surface 6 and outer end 15 provide an entrance to the receptacledefined by section 5 and spring means 9 to receive a lead 3 ofmicroelectronic circuit means 4 therein and the configuration of thisentrance facilitates the guiding of leads 3 into the receptacles.

An inwardly directed dimple 16 is provided in end 15 opposite corrugatedarea 8 and dimple 16 and corrugated area 8 define irregularcontact-engaging surfaces for electrical engagement with leads 3 toenhance the electrical engagement therebetween. An elongated depression17 is formed in movable member 14 to strengthen it and provide thedesirable spring characteristics thereto. Wings 18 extend outwardly frommovable member 14 and along corresponding sides of spring-receivingsection to maintain the contact-engaging area of movable member 14 inalignment with the contact-engaging area of section 5 during therelative movement therebetween. Arcuate depressions 19 are disposed inwings 18 and they can engage stationary member 13 and projection 7 tolimit the movement of movable member 14 relative to section 5 therebyproviding an anti-overstress means to prevent overstressing movablemember 14. Beveled areas are provided in the inside surfaces of wings 18to assist in guiding leads 3 into the receptacle means. The wings may betapered from an outer to inner direction thereby replacing beveled areas20 to assist in the guiding of the leads into the receptacle means. 7

After metallic posts 1 have been secured in mounting panel 2 inaccordance with a predetermined array, spring means 9 are mounted onspring-receiving sections 5 thereby forming electrical receptacle meansto electrically receive leads 3 of microelectronic circuit means 4.Posts 1 can have a configuration suitable for being connected to circuitpaths on panel 2 by conventional flow-soldering techniques or they canhave the necessary configurations for having connected theretopointto-point wiring via conventional connection-making means.

FIGS. 13-15 illustrate a preferred method of assembling connectors inaccordance with the invention to the contactengaging areas 5 of theterminal posts mounted in the panel 2, The connectors 9 are manufacturedin the form of a continuous ladder strip comprising a carrier strip 43having connectors 9 integral therewith and extending laterally therefromat spaced-apart intervals. Conventional pilot holes 47 are provided inthe ladder strip for feeding the strip through the die as is commonpractice in the stamping and forming art. It should be mentioned thatthe spacingbetween adjacent connectors 9 of the strip shown in FIG. 13will be precisely predetermined as will the spacing between adjacentpilot holes. Die stamping of electrical connecting devices is a preciseand exacting art and extremely close tolerances are commonly held on theparts as a matter of routine in order to ensure consistently highquality and performance.

In accordance with the assembling method of the instant invention, thesections 45 of the connecting devices 9, by means of which they arejoined to the carrier strip, are scored or otherwise weakened so thatthe individual connectors can be broken from the carrier strip 43. Thescoring can take the form of a notch extending parallel to the edge ofthe carrier strip and having a depth sufficient to permit the carrierstrip to be cleanly broken from the connectors. When it is desired toassemble a group of connectors 9 to the upper post sections 5 of theterminal posts, a length of terminal strip is cut having a number ofconnectors thereon which is equal to the number of posts to whichconnectors are to be assembled. It will be understood that the posts 5are located in the panel board on centers equal to the spacing betweenadjacent connectors 9 of the terminal strip. The strip is simply moveddownwardly as illustrated in FIGS. 13 and 14 until the post portions 5extend through the connectorsssince the connectors are accurately.

located on the strip, and since the posts are accurately located in thepanel board, the terminals can easily be aligned with the terminal postsas indicated. After the connectors have been assembled to the posts, thecarrier strip 43 is simply bent laterally until the connecting sectionsbetween the terminals or connectors in the carrier strip fractures asshown in FIG. 15.

FIG. 16 shows a modification which permits the assembly of connectingdevices 9 to terminal posts which are located on closely spaced centers,the spacing between adjacent posts in FIG. 16 being one-half the spacingbetween the posts shown in FIG. 13. Where the spacing is as in FIG. 16,two strips of terminals 43, 43 are positioned against each other withthe connecting devices interdigitated and with the carrier stripsagainst each other. The assembly procedure is as described above; thetwo strips of terminals are simply moved downwardly until the connectingdevices are assembled to the terminal posts and the carrier strips 43,43 are then broken away from the connecting devices.

The assembly operations shown in FIGS. 13-16 can be carried out manuallyalthough it is desirable to use a tool or applicator for this operation.FIG. 17 shows a simple hand tool particularly designed to assemble theconnecting devices extending from two terminal strips to closely spacedterminal posts as shown in FIG. 16. This tool 49 has crossed handles 51,53 which are pivoted together by a pin 55. The forward portions of thehandles 53, 57 are flat and platelike, the forward portion 53 of thehandle 51 extending beyond the portion 57 of the other handle and havingobliquely upwardly directed teeth 55 on its end. These teeth are spacedapart by a distance equal to one-half of the spacing between adjacentconnectors 9 of the terminal strip and the gaps between adjacent teethhave a width which is substantially equal to, and slightly greater than,the distance between the external surfaces of the Wings 18 of theconnecting devices 9. By virtue of these dimensions, two superimposedstrips can be positioned on the surface of the jaw portions 53 with thewing portions of the connectors held between adjacent teeth 55. Theconnectors will then be spaced apart by a distance substantially equalto the spacing between adjacent posts on the panel 2. The jaw 57 has achannel 59 on its underside, which is wider than the carrier strip 43.The jaws do not grip the strips tightly when the handles are closed sothat both strips 43, 43 can move laterally by a slightamount to permitthe terminals to align themselves precisely with the posts while theyare being assembled to the posts.

In order to facilitate the removal of the carrier strips from theconnectors which have been assembled to the terminal post,.the end ofthe handle 53 is provided with a slot 61, the width of which is equal totwice the thickness of an individual carrier strip 43. The carrierstrips can then be removed by merely locating the strips in this slotand swinging the tool througha slight arc to affect fracture of thecarrier strips at the weakened sections 45.

It will be apparent that the assembly method described above and shownin FIGS. 13-20 can be carried out with an automatic or semiautomaticinsertion apparatus where large numbers of connecting devices must beapplied to printed circuit boards having terminal posts located thereinat regularly spaced intervals.

The receptacle means, as illustrated in FIG. 1, can be completely openor they can be covered by a dielectric housing H as illustrated in FIG.2 which is provided with cavities 21 in which the electrical receptaclemeans are located. Openings 22 having beveled entrances are provided inhousing H and they are in alignment with the respective receptacle meansso that the leads of the microelectronic circuit means extendtherethrough for electrical engagement with the receptacle means. Holes23 are disposed in housing l-I between cavities 21 and they have securedtherein barbed securing members 24 which have sections 25 extending.through apertures 26 in panel 2 and the free ends thereof are bent tosecure housing H in position on panel 2.

Wings 18 can be engaged by a projection means (not shown) on themicroelectronic circuit means to move the movable members 14 of thespring means 9 away from the close sections 5 in a simultaneous mannerwhile the leads 3 are being inserted into the receptacle means, andafter the leads are disposed in the receptacles, the projection meansmove free of wings 18 and movable members 14 move into engagement withleads 3. This arrangement provides a zero-insertion force approach whichcan be advantageous when a large number of leads are to be connected.

FIGS. 4 through 10 illustrate various embodiments of the spring means.In FIG. 4, wings 18a are located on stationary member 13a. Stationarymember 13b in FIG. 5 is U-shaped so that the legs thereof extend alongthe sides of section 5 and they can, in fact, be bent into tightengagement with section 5 while wings 18b are located on movable member14b and they have inwardly directed free ends 27 which extend alongsection 5 below projection 7. The embodiment of FIG. 6 is similar inconstruction to that of FIG. 5 except that wings 18c extend outwardlyfrom stationary member 13c and they have inwardly directed free ends 28extending toward one another behind movable member 140. In FIG. 7, onewing 18d extends outwardly from stationary member 13b along the side ofsection 5d and movable member 14d while the other wing 18dextendsoutwardly from movable member 14d along another side of section 5d andalong stationary member 13d. The spring means 9e of FIG. 8 is similar inconstruction to that of FIG. 7 except that the free'ends of wings ]8eare bent inwardly and disposed in spaced relationship back of stationarymember 13e and movable member 142. Wings 18f extend outwardly fromstationary member 13f in FIG. 9 and parts 29 of wings 13f have beensheared therefrom and they are clenched onto section 5f of post 1 f inan undercut area 30 thereof.

Openings 10 and 1011 through 10] of the spring means 9 and 9a through 9fare dimensioned so that the sides of these openings in engagement withsection 5 of the post properly engage the sides of the post section toprevent any rotation of the spring means on the post sections and, ofcourse, slits 12 and 120 through 12f prevent the openings 10 and 10athrough 10f from being deformed. In the case of the embodiment of FIGS.5 and 9, the legs of the U-shaped stationary member 13b and parts 29 canbe clenched onto sides of the post sections thereby increasing theresistance against rotation of the spring means on the post sections.

FIGS. 11 and 12 illustrate a mounting panel 31 having apertures 32extending therethrough and into which round sections 33 of dielectrichousing I-Ia are disposed. Square or rectangular sections 34 of housingI-Ia abut against adjacent housings when mounted on panel 31 to preventany rotation therebetween. Cavity 35 is located in each section 34 andit is in communication with a rectangular opening 36 extending throughround section 33. A post 1h is provided with arcuate projections 37 andpost 1h is inserted into opening 36 while housing I-la is held againstpanel 31 until section 5h is properly positioned in cavity 35 andarcuate projections 37 are seated in a portion of round section 33 belowpanel 31 causing this portion to be expanded in size thereby securinghousing Ha in position on the panel. Spring means 9h is pushed intocavity 35 with spring-receiving section 5h extending through oblongopening 10h until spring lance 38, which has been struck inwardly fromstationary member 13h, is seated under projection 7h thereby securingspring means 9h in position. The outer end of stationary member 13h isprovided with a V- shaped extension 39 having an opening 40 therein inalignment with the contact-engaging areas between section 5h and outerend h of movable member 14h so that the leads of the microelectroniccircuit means can be readily guided thereinto via V-shaped extension 39and opposing sides of housing I-Ia.

' A channel 41 is disposed in the internal surface of the side ofhousing Ha adjacent movable member 14h to allow outer end 15h to movethereinto and to provide anti-overstress means to prevent deformation ofmovable member 14h. Movable member 14h is placed under stress by virtueof the inner end thereof being in engagement with the sidewall of cavity35 when spring means 9h is inserted into cavity 35 so that movablemember 14h properly engages the leads of the microelectronic circuitmeans when inserted therein.

As can be discerned from the foregoing, there has been discloseddifferent types of electrical receptacle means for connection with leadsof microelectronic circuit means which are unhoused or housed and thespring means can be replaced if they are damaged.

Changes in construction will occur to those skilled in the art andvarious apparently different modifications and embodiments may be madewithout departing from the scope of the invention. The matter set forthin the foregoing description and accompanying drawings is offered by wayof illustration only.

I claim:

1. An electrical connector comprising a mounting panel, electrical postssecured in said panel at spaced locations and having spring-receivingsections extending outwardly from one surface of said panel, springmeans disposed on said spring-receiving sections and includingstationary members and movable members, said stationary membersextending along one side of said spring-receiving sections, securingmeans provided by said spring-receiving sections and said stationarymembers securing said spring means on said springreceiving sections,said movable members being disposed along another side of saidspring-receiving sections and including contact-engaging sectionsadjacent said spring-receiving sections, said movable members and saidposts cooperating and defining contact-receiving receptaclestherebetween, said movable members having outer ends with surfacesthereon, said posts having surfaces thereon, said surfaces of said postscooperating respectively with said surfaces on the outer ends of saidspring members to extend away from one another and define entryways andguide means adjacent to said contacbreceiving receptacles, and meansbetween said spring-receiving sections and said spring means preventingrotation of said spring means relative to said spring-receivingsections.

2. An electrical connector according to claim 1 wherein said posts haveconductor-receiving sections extending outwardly from another surface ofsaid panel.

3. An electrical connector according to claim 1 wherein dielectrichousing means having cavities is disposed on said panel withcorresponding rows of said posts and spring means located in saidcavities, said housing having openings in alignment with said posts andspring means, and means securing said housing onto said panel.

4. An electrical connector according to claim 1 wherein each of saidposts is disposed in an individual dielectric housing having a sectionsecured in an aperture in said panel by projection means on said posts,said housing having a cavity in which said spring-receiving section andspring means is disposed.

5. An electrical connector comprising a metallic elongated member havinga spring-receiving section therealong, spring means defining astationary member and a movable member connected together by a bight,said bight having an opening through which said spring-receiving sectionextends with said stationary member and said movable member disposedalong opposite sides of said spring-receiving section, said movablemember and said spring-receiving section having opposed contact-engagingareas cooperating to define a contact receiving receptacle therebetween,wherein outer ends of said spring-receiving section and said movablemember have surfaces extending away from each other thereby definingguide means to said contact-engaging areas, and means provided by saidstationary member and said spring-receiving section securing said springmeans on said spring-receiving section.

6. An electrical connector according to claim 5 wherein at least one ofsaid stationary and said movable members includes wing means extendingoutwardly therefrom and along other opposite sides of saidspringreceiving section to maintain said contact-engaging area of saidmovable member in alignment with said contact-engaging area of saidspringreceiving section.

7. An electrical connector according to claim 6 wherein said wing meansare located on said movable member and they include inwardly directedsections at free ends thereof.

8. An electrical connector according to claim 6 wherein said wing meansare located on said stationary member and they include inwardly directedsections at free ends thereof.

9. An electrical connector according to claim 6 wherein said wing meansare located on each of said stationary and movable members.

10. An electrical connector according to claim 6 wherein said wing meansare located on each of said stationary and movable members and theyinclude inwardly directed sections at free ends thereof.

11. An electrical connector according to claim 6 wherein said stationarymember is U-shaped and legs thereof are clenched in engagement with saidother opposite sides of said spring-receiving section.

12. An electrical connector according to claim 6 wherein said stationarymember is U-shaped and parts of legs thereof are clinched in engagementwith said other opposite sides of said spring-receiving section.

13. An electrical connector according to claim wherein said bight has aslit therein in communication with said opening to prevent said openingfrom being deformed and to main tain opposing sides of said opening intight engagement with other opposite sides of said spring-receivingsection.

14. An electrical connector according to claim 13 wherein an outer endof said stationary member includes a V-shaped extension having anopening in alignment with said contactengaging areas.

15., An electrical connector according to claim 14 wherein saidcontact-engaging area of said spring-receiving section has a corrugatedconfiguration and said contact-engaging area of said movable member hasan inwardly directed dimple.

16. An electrical connector according to claim 15 wherein inner topedges of said wing means have beveled surfaces in alignment with saidcontact-engaging areas.

17. An electrical connector according to claim 16 wherein said elongatedmember has a conductor-receiving section spaced from saidspring-receiving section.

1. An electrical connector comprising a mounting panel, electrical postssecured in said panel at spaced locations and having spring-receivingsections extending outwardly from one surface of said panel, springmeans disposed on said springreceiving sections and including stationarymembers and movable members, said stationary members extending along oneside of said spring-receiving sections, securing means provided by saidspring-receiving sections and said stationary members securing saidspring means on said spring-receiving sections, said movable membersbeing disposed along another side of said springreceiving sections andincluding contact-engaging sections adjacent said spring-receivingsections, said movable members and said posts cooperating and definingcontact-receiving receptacles therebetween, said movable members havingouter ends with surfaces thereon, said posts having surfaces therEon,said surfaces of said posts cooperating respectively with said surfaceson the outer ends of said spring members to extend away from one anotherand define entryways and guide means adjacent to said contact-receivingreceptacles, and means between said spring-receiving sections and saidspring means preventing rotation of said spring means relative to saidspring-receiving sections.
 2. An electrical connector according to claim1 wherein said posts have conductor-receiving sections extendingoutwardly from another surface of said panel.
 3. An electrical connectoraccording to claim 1 wherein dielectric housing means having cavities isdisposed on said panel with corresponding rows of said posts and springmeans located in said cavities, said housing having openings inalignment with said posts and spring means, and means securing saidhousing onto said panel.
 4. An electrical connector according to claim 1wherein each of said posts is disposed in an individual dielectrichousing having a section secured in an aperture in said panel byprojection means on said posts, said housing having a cavity in whichsaid spring-receiving section and spring means is disposed.
 5. Anelectrical connector comprising a metallic elongated member having aspring-receiving section therealong, spring means defining a stationarymember and a movable member connected together by a bight, said bighthaving an opening through which said spring-receiving section extendswith said stationary member and said movable member disposed alongopposite sides of said spring-receiving section, said movable member andsaid spring-receiving section having opposed contact-engaging areascooperating to define a contact receiving receptacle therebetween,wherein outer ends of said spring-receiving section and said movablemember have surfaces extending away from each other thereby definingguide means to said contact-engaging areas, and means provided by saidstationary member and said spring-receiving section securing said springmeans on said spring-receiving section.
 6. An electrical connectoraccording to claim 5 wherein at least one of said stationary and saidmovable members includes wing means extending outwardly therefrom andalong other opposite sides of said spring-receiving section to maintainsaid contact-engaging area of said movable member in alignment with saidcontact-engaging area of said spring-receiving section.
 7. An electricalconnector according to claim 6 wherein said wing means are located onsaid movable member and they include inwardly directed sections at freeends thereof.
 8. An electrical connector according to claim 6 whereinsaid wing means are located on said stationary member and they includeinwardly directed sections at free ends thereof.
 9. An electricalconnector according to claim 6 wherein said wing means are located oneach of said stationary and movable members.
 10. An electrical connectoraccording to claim 6 wherein said wing means are located on each of saidstationary and movable members and they include inwardly directedsections at free ends thereof.
 11. An electrical connector according toclaim 6 wherein said stationary member is U-shaped and legs thereof areclenched in engagement with said other opposite sides of saidspring-receiving section.
 12. An electrical connector according to claim6 wherein said stationary member is U-shaped and parts of legs thereofare clinched in engagement with said other opposite sides of saidspring-receiving section.
 13. An electrical connector according to claim5 wherein said bight has a slit therein in communication with saidopening to prevent said opening from being deformed and to maintainopposing sides of said opening in tight engagement with other oppositesides of said spring-receiving section.
 14. An electrical connectoraccording to claim 13 wherein an outer end of said stationary memberincludes a V-shaped extension having an opening in alignment with saidcontacT-engaging areas.
 15. An electrical connector according to claim14 wherein said contact-engaging area of said spring-receiving sectionhas a corrugated configuration and said contact-engaging area of saidmovable member has an inwardly directed dimple.
 16. An electricalconnector according to claim 15 wherein inner top edges of said wingmeans have beveled surfaces in alignment with said contact-engagingareas.
 17. An electrical connector according to claim 16 wherein saidelongated member has a conductor-receiving section spaced from saidspring-receiving section.